./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/list-ext-properties/simple-ext.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 826ab2ba Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_05dc1bee-5894-47b6-af83-1531133fbee3/bin/ukojak-verify-EEHR8qb7sm/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_05dc1bee-5894-47b6-af83-1531133fbee3/bin/ukojak-verify-EEHR8qb7sm/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_05dc1bee-5894-47b6-af83-1531133fbee3/bin/ukojak-verify-EEHR8qb7sm/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_05dc1bee-5894-47b6-af83-1531133fbee3/bin/ukojak-verify-EEHR8qb7sm/config/KojakReach.xml -i ../../sv-benchmarks/c/list-ext-properties/simple-ext.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_05dc1bee-5894-47b6-af83-1531133fbee3/bin/ukojak-verify-EEHR8qb7sm/config/svcomp-Reach-32bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_05dc1bee-5894-47b6-af83-1531133fbee3/bin/ukojak-verify-EEHR8qb7sm --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Kojak --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 79d8454f49f42d774b494771accf13f0b47382db45ac5cfdb4c7afee633f8cd7 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-826ab2b [2024-11-13 16:53:30,466 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-13 16:53:30,536 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_05dc1bee-5894-47b6-af83-1531133fbee3/bin/ukojak-verify-EEHR8qb7sm/config/svcomp-Reach-32bit-Kojak_Default.epf [2024-11-13 16:53:30,541 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-13 16:53:30,541 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck.Interpolating solver [2024-11-13 16:53:30,565 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-13 16:53:30,566 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-13 16:53:30,567 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2024-11-13 16:53:30,567 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-13 16:53:30,567 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-13 16:53:30,567 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-13 16:53:30,567 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-13 16:53:30,567 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-13 16:53:30,568 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-13 16:53:30,568 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-13 16:53:30,568 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-13 16:53:30,568 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-13 16:53:30,568 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-13 16:53:30,568 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-13 16:53:30,568 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-13 16:53:30,568 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-13 16:53:30,568 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-13 16:53:30,569 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-13 16:53:30,569 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2024-11-13 16:53:30,569 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2024-11-13 16:53:30,569 INFO L153 SettingsManager]: * Theory for external solver=ALL [2024-11-13 16:53:30,569 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-13 16:53:30,569 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2024-11-13 16:53:30,569 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-13 16:53:30,570 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-13 16:53:30,570 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-13 16:53:30,570 INFO L153 SettingsManager]: * Trace refinement strategy=PENGUIN [2024-11-13 16:53:30,570 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-13 16:53:30,570 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_05dc1bee-5894-47b6-af83-1531133fbee3/bin/ukojak-verify-EEHR8qb7sm Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 79d8454f49f42d774b494771accf13f0b47382db45ac5cfdb4c7afee633f8cd7 [2024-11-13 16:53:30,930 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-13 16:53:30,942 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-13 16:53:30,946 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-13 16:53:30,947 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-13 16:53:30,949 INFO L274 PluginConnector]: CDTParser initialized [2024-11-13 16:53:30,951 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_05dc1bee-5894-47b6-af83-1531133fbee3/bin/ukojak-verify-EEHR8qb7sm/../../sv-benchmarks/c/list-ext-properties/simple-ext.i Unable to find full path for "g++" [2024-11-13 16:53:32,971 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-13 16:53:33,326 INFO L384 CDTParser]: Found 1 translation units. [2024-11-13 16:53:33,327 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_05dc1bee-5894-47b6-af83-1531133fbee3/sv-benchmarks/c/list-ext-properties/simple-ext.i [2024-11-13 16:53:33,339 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_05dc1bee-5894-47b6-af83-1531133fbee3/bin/ukojak-verify-EEHR8qb7sm/data/3d136c770/63cda77090f74e6cb25433a407e455b0/FLAG1a76502d7 [2024-11-13 16:53:33,357 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_05dc1bee-5894-47b6-af83-1531133fbee3/bin/ukojak-verify-EEHR8qb7sm/data/3d136c770/63cda77090f74e6cb25433a407e455b0 [2024-11-13 16:53:33,359 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-13 16:53:33,361 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-13 16:53:33,362 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-13 16:53:33,362 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-13 16:53:33,369 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-13 16:53:33,370 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 04:53:33" (1/1) ... [2024-11-13 16:53:33,371 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2b333750 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 04:53:33, skipping insertion in model container [2024-11-13 16:53:33,374 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 04:53:33" (1/1) ... [2024-11-13 16:53:33,421 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-13 16:53:33,734 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_05dc1bee-5894-47b6-af83-1531133fbee3/sv-benchmarks/c/list-ext-properties/simple-ext.i[23272,23285] [2024-11-13 16:53:33,742 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-13 16:53:33,749 INFO L200 MainTranslator]: Completed pre-run [2024-11-13 16:53:33,797 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_05dc1bee-5894-47b6-af83-1531133fbee3/sv-benchmarks/c/list-ext-properties/simple-ext.i[23272,23285] [2024-11-13 16:53:33,799 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-13 16:53:33,830 INFO L204 MainTranslator]: Completed translation [2024-11-13 16:53:33,831 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 04:53:33 WrapperNode [2024-11-13 16:53:33,832 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-13 16:53:33,833 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-13 16:53:33,834 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-13 16:53:33,834 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-13 16:53:33,840 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 04:53:33" (1/1) ... [2024-11-13 16:53:33,857 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 04:53:33" (1/1) ... [2024-11-13 16:53:33,874 INFO L138 Inliner]: procedures = 124, calls = 19, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 73 [2024-11-13 16:53:33,874 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-13 16:53:33,874 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-13 16:53:33,875 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-13 16:53:33,875 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-13 16:53:33,882 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 04:53:33" (1/1) ... [2024-11-13 16:53:33,882 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 04:53:33" (1/1) ... [2024-11-13 16:53:33,885 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 04:53:33" (1/1) ... [2024-11-13 16:53:33,885 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 04:53:33" (1/1) ... [2024-11-13 16:53:33,891 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 04:53:33" (1/1) ... [2024-11-13 16:53:33,896 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 04:53:33" (1/1) ... [2024-11-13 16:53:33,897 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 04:53:33" (1/1) ... [2024-11-13 16:53:33,898 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 04:53:33" (1/1) ... [2024-11-13 16:53:33,904 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-13 16:53:33,904 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-13 16:53:33,904 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-13 16:53:33,905 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-13 16:53:33,909 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 04:53:33" (1/1) ... [2024-11-13 16:53:33,918 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2024-11-13 16:53:33,935 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_05dc1bee-5894-47b6-af83-1531133fbee3/bin/ukojak-verify-EEHR8qb7sm/z3 [2024-11-13 16:53:33,948 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_05dc1bee-5894-47b6-af83-1531133fbee3/bin/ukojak-verify-EEHR8qb7sm/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2024-11-13 16:53:33,952 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_05dc1bee-5894-47b6-af83-1531133fbee3/bin/ukojak-verify-EEHR8qb7sm/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2024-11-13 16:53:33,982 INFO L130 BoogieDeclarations]: Found specification of procedure myexit [2024-11-13 16:53:33,986 INFO L138 BoogieDeclarations]: Found implementation of procedure myexit [2024-11-13 16:53:33,986 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2024-11-13 16:53:33,986 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2024-11-13 16:53:33,986 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-11-13 16:53:33,986 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-13 16:53:33,987 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2024-11-13 16:53:33,987 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2024-11-13 16:53:33,987 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-11-13 16:53:33,987 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-11-13 16:53:33,987 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-13 16:53:33,987 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-13 16:53:34,101 INFO L238 CfgBuilder]: Building ICFG [2024-11-13 16:53:34,103 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-13 16:53:34,134 INFO L735 $ProcedureCfgBuilder]: dead code at ProgramPoint myexitFINAL: assume true; [2024-11-13 16:53:34,315 INFO L? ?]: Removed 12 outVars from TransFormulas that were not future-live. [2024-11-13 16:53:34,315 INFO L287 CfgBuilder]: Performing block encoding [2024-11-13 16:53:34,351 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-13 16:53:34,351 INFO L316 CfgBuilder]: Removed 3 assume(true) statements. [2024-11-13 16:53:34,352 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 04:53:34 BoogieIcfgContainer [2024-11-13 16:53:34,352 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-13 16:53:34,353 INFO L112 PluginConnector]: ------------------------CodeCheck---------------------------- [2024-11-13 16:53:34,353 INFO L270 PluginConnector]: Initializing CodeCheck... [2024-11-13 16:53:34,364 INFO L274 PluginConnector]: CodeCheck initialized [2024-11-13 16:53:34,364 INFO L184 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 04:53:34" (1/1) ... [2024-11-13 16:53:34,376 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 16:53:34,426 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-13 16:53:34,438 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25 states to 19 states and 25 transitions. [2024-11-13 16:53:34,439 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 25 transitions. [2024-11-13 16:53:34,441 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2024-11-13 16:53:34,441 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-13 16:53:34,442 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 16:53:34,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 16:53:34,595 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 16:53:34,624 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-13 16:53:34,624 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 19 states and 23 transitions. [2024-11-13 16:53:34,625 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 23 transitions. [2024-11-13 16:53:34,626 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2024-11-13 16:53:34,626 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-13 16:53:34,627 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 16:53:34,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-13 16:53:34,684 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-13 16:53:34,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-13 16:53:34,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-13 16:53:34,787 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-13 16:53:34,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-13 16:53:34,824 WARN L473 CodeCheckObserver]: This program is UNSAFE, Check terminated with 2 iterations. [2024-11-13 16:53:34,851 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 13.11 04:53:34 ImpRootNode [2024-11-13 16:53:34,851 INFO L131 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2024-11-13 16:53:34,852 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-13 16:53:34,852 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-13 16:53:34,852 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-13 16:53:34,853 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 04:53:34" (3/4) ... [2024-11-13 16:53:34,854 INFO L136 WitnessPrinter]: Generating witness for reachability counterexample [2024-11-13 16:53:34,924 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_05dc1bee-5894-47b6-af83-1531133fbee3/bin/ukojak-verify-EEHR8qb7sm/witness.graphml [2024-11-13 16:53:34,924 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-13 16:53:34,925 INFO L158 Benchmark]: Toolchain (without parser) took 1564.41ms. Allocated memory is still 117.4MB. Free memory was 93.0MB in the beginning and 89.1MB in the end (delta: 3.9MB). Peak memory consumption was 66.1MB. Max. memory is 16.1GB. [2024-11-13 16:53:34,925 INFO L158 Benchmark]: CDTParser took 0.44ms. Allocated memory is still 167.8MB. Free memory is still 103.9MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-13 16:53:34,926 INFO L158 Benchmark]: CACSL2BoogieTranslator took 470.48ms. Allocated memory is still 117.4MB. Free memory was 93.0MB in the beginning and 75.4MB in the end (delta: 17.6MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-11-13 16:53:34,926 INFO L158 Benchmark]: Boogie Procedure Inliner took 40.63ms. Allocated memory is still 117.4MB. Free memory was 75.4MB in the beginning and 74.0MB in the end (delta: 1.4MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-13 16:53:34,926 INFO L158 Benchmark]: Boogie Preprocessor took 29.23ms. Allocated memory is still 117.4MB. Free memory was 74.0MB in the beginning and 72.9MB in the end (delta: 1.1MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-13 16:53:34,927 INFO L158 Benchmark]: RCFGBuilder took 447.59ms. Allocated memory is still 117.4MB. Free memory was 72.9MB in the beginning and 58.5MB in the end (delta: 14.4MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-11-13 16:53:34,931 INFO L158 Benchmark]: CodeCheck took 498.86ms. Allocated memory is still 117.4MB. Free memory was 58.5MB in the beginning and 38.5MB in the end (delta: 20.1MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-11-13 16:53:34,931 INFO L158 Benchmark]: Witness Printer took 72.26ms. Allocated memory is still 117.4MB. Free memory was 38.5MB in the beginning and 89.1MB in the end (delta: -50.6MB). Peak memory consumption was 15.7MB. Max. memory is 16.1GB. [2024-11-13 16:53:34,933 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck: - StatisticsResult: Ultimate CodeCheck benchmark data CFG has 2 procedures, 20 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 0.4s, OverallIterations: 2, TraceHistogramMax: 0, PathProgramHistogramMax: 0, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 22 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 0 mSDsluCounter, 11 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 0 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 3 IncrementalHoareTripleChecker+Invalid, 3 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 0 mSolverCounterUnsat, 11 mSDtfsCounter, 3 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 51 GetRequests, 51 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, InterpolantAutomatonStates: 0, traceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 17 NumberOfCodeBlocks, 17 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 7 ConstructedInterpolants, 0 QuantifiedInterpolants, 7 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: No data available, ReuseStatistics: No data available - CounterExampleResult [Line: 551]: a call to reach_error is reachable a call to reach_error is reachable We found a FailurePath: [L532] List a = (List) malloc(sizeof(struct node)); [L533] COND FALSE !(a == 0) VAL [a={7177:0}] [L534] List t; [L535] List p = a; [L536] int i = 0; VAL [a={7177:0}, i=0, p={7177:0}] [L537] i < 30 && __VERIFIER_nondet_int() [L537] i < 30 && __VERIFIER_nondet_int() VAL [a={7177:0}, i=0, p={7177:0}] [L537] COND FALSE !(i < 30 && __VERIFIER_nondet_int()) [L545] p->h = i [L546] p->n = 0 [L547] p = a [L548] i = 0 VAL [a={7177:0}, i=0, p={7177:0}] [L549] COND TRUE p!=0 [L550] EXPR p->h VAL [a={7177:0}, i=0, p={7177:0}] [L550] COND TRUE p->h != 1 [L551] reach_error() VAL [a={7177:0}, i=0, p={7177:0}] * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.44ms. Allocated memory is still 167.8MB. Free memory is still 103.9MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 470.48ms. Allocated memory is still 117.4MB. Free memory was 93.0MB in the beginning and 75.4MB in the end (delta: 17.6MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 40.63ms. Allocated memory is still 117.4MB. Free memory was 75.4MB in the beginning and 74.0MB in the end (delta: 1.4MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 29.23ms. Allocated memory is still 117.4MB. Free memory was 74.0MB in the beginning and 72.9MB in the end (delta: 1.1MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 447.59ms. Allocated memory is still 117.4MB. Free memory was 72.9MB in the beginning and 58.5MB in the end (delta: 14.4MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * CodeCheck took 498.86ms. Allocated memory is still 117.4MB. Free memory was 58.5MB in the beginning and 38.5MB in the end (delta: 20.1MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * Witness Printer took 72.26ms. Allocated memory is still 117.4MB. Free memory was 38.5MB in the beginning and 89.1MB in the end (delta: -50.6MB). Peak memory consumption was 15.7MB. Max. memory is 16.1GB. RESULT: Ultimate proved your program to be incorrect! [2024-11-13 16:53:34,968 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_05dc1bee-5894-47b6-af83-1531133fbee3/bin/ukojak-verify-EEHR8qb7sm/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE